Apparatus for extracting turpentine and resinous substances from wood.



- F. W; WATERMAN. APPARATUS FOR EXTRAGTING" TURPBNTINE'AND RBSINOUS SUBSTANGBS FROM WOOD.

y APPLICATION FILED 00T. 6,1910.

W. WATERMAN. l APPARATUS F013, BXTROTING TURPBNTINE AND RESINOUS SUBSTANGES PROM WOOD. u 4 ALIOATION FILED UGT. 8, 1910. u

LQQWTZQ, i famme@ me 9,1914.

FRANK My 'pres-ait iuveuion miams t0 mpirw `1111x1115 i1; apparatus for @imei-ing impeninc, resin 111161 0131er fatty 11' gummy 1s1110- stzmces from Wood :und asp'ecialjy' from wood when in :1. divied coi'iditii, sufzh 21S saw dust or chiqis, :md it has for iis, objct pi 1111 improved and more eiicient appamtus, of dais dass 'which is capabie of rapiiy @Xtiac'ing such by--p1'0dmais in @0051 condition and ,fca'l'jf im@ from mpuitis mf injul'jf., and the ieutmg pulp can be :'Qf-,overe free from i'upentiiic und resin 91ml in 211i unmpnil'e condition so that it may be Used advumazcfousiy 5111 13h@ infuuiaiui'@ di palmi: sind @Mier :'nides mada from @11M5 the zlppa'aus being So consruccd' iii-11'. iba vai-ions opel'aions :new essmy t@ Qbliain H19, foregoing lesuls 111e mking place siinn-tunemisjy' whelfhy ih@ great- @ciencjf :1116i capaciy is ob'mim with 2111 apparatus 0:? pgiwn size.

A. uitimr object oi 111e invention Via a retort supepoge 0151 'gab use in connection with :11:1 appaiaiu," of fthe dass specfied, Jdie 11111791" or 511131311111513@ tort 'mt eceivingg '5h-e Wood and opeiang 'thereon xiexi'rnct the uipentim and 011111111 voa'ie subatancea and the diesei s'ubse quentiy receiving" the 'residue 313901'. Kimm the retort and spelaaing; thereon ai" :1 rein ivel'y high@ tempemure to @dmc-b the iesinous subsmnce simpl@ but Q''icient devices hef being); shbvii, in fz'mtiun md 0317111111 meufs of ih@ appzirriiius bein shown m bec ubi@ mag* @1111111111:

t'fulnriy in the claims '111i the, end. of the,

operation of h@ appa 111x151. The im a coniszii 1711: imp{nar-shaw@ bo" y 1m31 1111 01,11*,"315, of: discharge pipe 7 is mening in the bottom. 1: e

not mst di 112011111' 11113011 the buttwm (i .'111 oi'ffw Eiquifi which accunfmines in the bom" 'i 5111i' 1f; iiD@ 15 ami Kwis? 137 H c '11113135 15 and 115 New@ 15m-- hable wives Wham after the turpentine and volatile substances have been distilled oil', steam may be admitted to the chamber from the pipe so as to discharge the residual mass fronigthe chamber 1 and transfer it to the chamber r1`he discharge pipe .7 vwhich -forms a fluid pressure-tight connect/ion between the chambers 1 and-2 -is provided with a suitable valve 17 which is normally closed during; the' with a suitable valve. The still 18 contains a suitable heating coil the bends of which are preferably arranged in a vertical plane so as to avoid obstructing the passage of the substances Within the still when the same are discharged through a discharge valve 23 atv the bottom ot the still, and a gas or other suitable burner may be mounted beneath the still to supplement the heating effect of the steam coil '22 and thereby raise the teni perature within the still to a point sufficiently high to melt any resin that may be carried over with the turpentine or volatile substances from the upper chamber 1. The cock being closed, vapors from the still are conducted therefrom through a pipe l ti'irough a valve into a condensing coil the latter being contained as usual within an. appropriate cooling tank Q7, and the et end oit the condensing coil is imsetl Within a bath of WaterQS contained in collecting' tank 2), the latter having a Weir over which the turpcntine, which will rise to the surface ot' the Water, may overflow. A. supplemental valve-controlled pipe 255 may be provided in the top of the still to permit the escape of Water during the evaporation ot the latter subsequent t the extraction oi the turpentine.

The lower (lighter chamber 2 receives the flesidue upon the completion of each distilling opcrition carried on in the upper chamber '.1)I this chamber "2 haring a corel' 31 i ic A and the, lower end of the chamber 2 is closed a bottom 32 ufhich is preferably conical or hoi'iper-shaped and is provided with a barge valve through which the pulp of the turpentine and resin may be iarged. provided with a foraminous support which the mass ot' material may rest colleeti chamber 1, the pipe 2l being also provided h conn cted to the discharge pipe 7.

This lower chamber may also l subjected to a temperature higher than that to which the Wood in its natural condition is subjected in the chamber 1. A temperature for example of 310 F. may be used in the lower retort chamber' 2.

.means may be provided for so heating the mass. In the present instance, I haveprovided a. vertically arranged closed or imperforate hea-ting coil 36 which may lie in close proximity to one Wall of the chamber in such a Way as not to obstruct the movement of the mass While' being dischar ed through the valve 33, and the heating e ect ot' this coil 36 may be Vsupplen'i'ented by an appropriate burner 3'? arrangedA beneath the bottom of the chamber. A discharge pipe 38 leads from the' collecting chamber 35 to a suitable collecting vessel 39, this pipe serving to discharge the resinous or gummy substances that are set free from the mass. lf so desired, means may also be provided for maintaining a constant circulation with in the chamber 2 during the distilling 'operation. a steam inlet pipe 40 entering the 'chamber 2 at the top and leading downwardly into the collecting chamber 35 Where it is provided with'a nozzle 41, this nozzle being' located at the mouth 42 of an ejector pipe 43'. The residue pulp may be discharged from 'chamber 2 by 'steam from pipe 44. v

ln operation, a mass of the Wood in the form of sawdust or chips is introduced into the chamber l through the'opening 4, and a suitable quantity of Water is admitted to the chamber l to thoroughly soak the Wood through the pipe 16. mitted to the coil l1 and the mass in the upper retort is heated and maintained at a suitable temperature below the boiling point of water Aand for a period sutlicient to distil olf the turpentine and any other volatile substances. Such vapor as may escape from the top Aof the solution may reach the still through the upper branch pipe Qi, the lower branch pipe 20, however, beingkept closed until practically all of the. turpcntine ias been freed from the mass.v Upon the completion of the distilling operation in the chamber 1, the pipe 2O may oe opened and the liquor contained in thisY chamber Will pass through the pipes 19 and Q0 into the still 1S carrying with it the turpentine and other volatile substances. Communication through the pipes 20 and 2l is then cut olig the valve 1T in the discharge pipe 7 is opened, and steam is admitted from the steam pipe l5 into the chamber 1, this steam acting upon the mass of material and causing it to discharge-from the chamber l through the pipe 7 and into the lower chamber 2, itbeing understood that the pipe 7 has pressure-tight connections with the chambers l and :2, and after this transfer of c l the mass from one chamber to the other. the

- Any suitable ihtermeiete velt/e it?" :ie egein closed, the Steele :from the pipe i is out oil', moi a new charge of materiel may he introduced into the chamber i through the inlet The e materiel received by the chemher 2 from the chemher i hes 'been deprived. of its torpeutine eed other volatile eubstence eno; this mees is further treated in the chamber 2 et e higher temperature, the tempemtue being' sufficiently high to free the mass ci?. resinoiie or gummy substances which collect in the space et the bottom of the chamber 2, end these gummy or ree'mous substances 'tied am outlet through the pipe 38 and into e suitehle collecting receptacle ihiriopg the treatment of the mass within the cheminer 2, suitable alkaline solution may he introduced therein to dissolve out the resiiious.; sub-- etences from 'the wood while the letter is boiled in this chamber, :inl this solvent which dieohergee subsequently into the receptoce Si) with the resinoue anni @yummy substances may "then he recovered izo amy known manner. .f llho second step in the opfinition takes piecey in' the chamber SZ while the :rst step in the operation is. taking piece iii the .upper chemher :imi during 1" eee two steps in the operation9 the turpeneine mid volatile euhstances discharged into 'll :irore the upper chamber are heilig" 'mel recovered iiom the Water, the

cogli. the condensing; coil 26 niet into the vv/eter hath 28 und? l; iilc grevityNhe turpemtine the etiriiece of 'this separator oheerviig rme :weitere of the substance dieehereiiig trom'the concleisihg coil, it may he oeeermi iiiimeclietely when the die i'ilietioo eh. tmpentineie at en end, and irie'ifeive M.. in the discharge pipe 25 of the etiil me; ii he closed. :incl the temperature Within trie stili increased to a, point Where it will melt any resii'ious substances' that moy house been carried over into the still toward the emi of the treatment in chamber 17 and cherie rcinous substances may be dischurgeii from the still through the discharge valve 23.

In Fig. 25 l have shown a duplex stili, the members of which may he connected to the chamber 1 in euch o Way that these memhers may receive' theturpeiotine alternately.

My present invention prow-fieles e. distilh ing apparatus the Various elemente of which are eo constructed emi related that the meterinls or substances muy he handled with the greetest facility end ecienoy enel,

.f over the Weir or dem 30. By

moreover, eli of the fiiii'erent etepe in the distillingg process or treetment may 4.take piece simoltaiieoueiy in the iicrent e1e 'mente oi' the apparatus, the operation of the Yeppmfzitus beingpmcticelly contimioiis enel,

ohviousli. the reetest. capacit ie :moored .fi g

homing it to extract resinous suhstencee .from the residue material after the extra@ tion of terpentine therefror a pipe formM ing e. iuid-tight connection between the hot-v tom of the retort eicel the top of the illgeetcr, e controlling valve toi? said pipe, .e stilllcon- 'liectec'i to receive turjpeiitiee :trom-theietert, ineens' for admitting t'iui pressure to the retort to forcibly iiischerge the reeiciue me teriel therefrom through seid connecting pipe end inte the digester, means for maintaining ai circulation of liquid in the di gestor during the extraction of resinous sub-- stances from the mess therein ineens for conducting eti the resinous subetancee oxtrectccl from the meesdii the digester, sind .means for aclmitting Huid pressure to the di gestel to forcibly expel the mese of residue therefrom.

- '2. 'lhe comhinetion of e retofiP adapted to receive ai cherge of Wood sind having ineens for heating the seme to extract turpentirae therefrom7 e dligeeter errenge .to receive the charge of Wood :from the retort otter extraction of the. turpentine, the digester 'having a oraminoue support in the bottom thereof for the charge of Woocl and forming e chamber below it for the collection oit' the resinous substances; ineens in the clgester ior heating the charge of Wood therein to extract the resinous Substances, means inthe digester for causing a circulation of the suhstences collecting in the cheminer in the bottom of the (igester to the top of theA charge of Wood therein, and means for Withdrawing the reeinoue substances from the digestor.v 'i

in testimony whereof I have hereunto set my hand in presence/0f two subscribing Wit-l messes.

@moet W. WATERMAN.

Witnesses: y

iommeT "Emmaus, CARY D. Hem, Jr. 

